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GH-95245: Store object values and dict pointers in single tagged pointer. (GH-95278)

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Mark Shannon 2022-08-01 14:34:54 +01:00 • committed by GitHub
parent fb75d015f4
commit de388c0a7b
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10 changed files with 271 additions and 203 deletions
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23
Python/ceval.c
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@ -3564,9 +3564,9 @@ handle_eval_breaker:
DEOPT_IF(tp->tp_version_tag != type_version, LOAD_ATTR);
assert(tp->tp_dictoffset < 0);
assert(tp->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictValues *values = *_PyObject_ValuesPointer(owner);
DEOPT_IF(values == NULL, LOAD_ATTR);
res = values->values[cache->index];
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
DEOPT_IF(!_PyDictOrValues_IsValues(dorv), LOAD_ATTR);
res = _PyDictOrValues_GetValues(dorv)->values[cache->index];
DEOPT_IF(res == NULL, LOAD_ATTR);
STAT_INC(LOAD_ATTR, hit);
Py_INCREF(res);
@ -3613,7 +3613,9 @@ handle_eval_breaker:
assert(type_version != 0);
DEOPT_IF(tp->tp_version_tag != type_version, LOAD_ATTR);
assert(tp->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictObject *dict = *(PyDictObject **)_PyObject_ManagedDictPointer(owner);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
DEOPT_IF(_PyDictOrValues_IsValues(dorv), LOAD_ATTR);
PyDictObject *dict = (PyDictObject *)_PyDictOrValues_GetDict(dorv);
DEOPT_IF(dict == NULL, LOAD_ATTR);
assert(PyDict_CheckExact((PyObject *)dict));
PyObject *name = GETITEM(names, oparg>>1);
@ -3750,12 +3752,13 @@ handle_eval_breaker:
assert(type_version != 0);
DEOPT_IF(tp->tp_version_tag != type_version, STORE_ATTR);
assert(tp->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictValues *values = *_PyObject_ValuesPointer(owner);
DEOPT_IF(values == NULL, STORE_ATTR);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
DEOPT_IF(!_PyDictOrValues_IsValues(dorv), STORE_ATTR);
STAT_INC(STORE_ATTR, hit);
Py_ssize_t index = cache->index;
STACK_SHRINK(1);
PyObject *value = POP();
PyDictValues *values = _PyDictOrValues_GetValues(dorv);
PyObject *old_value = values->values[index];
values->values[index] = value;
if (old_value == NULL) {
@ -3778,7 +3781,9 @@ handle_eval_breaker:
assert(type_version != 0);
DEOPT_IF(tp->tp_version_tag != type_version, STORE_ATTR);
assert(tp->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictObject *dict = *(PyDictObject **)_PyObject_ManagedDictPointer(owner);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
DEOPT_IF(_PyDictOrValues_IsValues(dorv), LOAD_ATTR);
PyDictObject *dict = (PyDictObject *)_PyDictOrValues_GetDict(dorv);
DEOPT_IF(dict == NULL, STORE_ATTR);
assert(PyDict_CheckExact((PyObject *)dict));
PyObject *name = GETITEM(names, oparg);
@ -4680,8 +4685,8 @@ handle_eval_breaker:
assert(type_version != 0);
DEOPT_IF(self_cls->tp_version_tag != type_version, LOAD_ATTR);
assert(self_cls->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictObject *dict = *(PyDictObject**)_PyObject_ManagedDictPointer(self);
DEOPT_IF(dict != NULL, LOAD_ATTR);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(self);
DEOPT_IF(!_PyDictOrValues_IsValues(dorv), LOAD_ATTR);
PyHeapTypeObject *self_heap_type = (PyHeapTypeObject *)self_cls;
DEOPT_IF(self_heap_type->ht_cached_keys->dk_version !=
read_u32(cache->keys_version), LOAD_ATTR);